Spray nozzle



1927. March 8 c. IHNE SPRAY NOZZLE Filed May 24. 1924 v :JM/vento@ HLE'S .IH/VE.

Patented Mar. s, 1927.

UNITED STATES PATENT OFFICE.

SPRAY NOZZLE.

Application filedv May 24, 1924. Serial No. 715,744.

This invention relates to nozzles, and especially to an improved form of spray nozzle. The main object of this invention 'is to provide an extremely simple and comparatively inexpensive spray nozzle. that en tirely eliminates drops or globules ofwater emerging therefrom, by dividing the out* flowing water into an extremely ine`mist; also to effect the spreading of the water or mist over arelatively large area of surface being watered. Other objects and important featureswill be pointed out or implied in the following details of description, in connection with the` accompanying drawings in which:

Fig. 1 is a vertical sectional view of a nozzle constructed according to this invention; and'Fig. 2 is a plan view of the excentrically and non-concentrically apertured disc that constitutes the inner member of the device.

Referring to these. drawings in detail, in which similar reference characters correspond to the several parts in both views; the outer or upper member 5 is internally threaded at G, and axially apertured at 7 to provide the outlet for the spray or mist;`

and this aperture is. countersunk or counter bored at both its inner and outer ends. the counter-bores being frusto-eonical and so nearly meeting one another as to provide an annular edge 8 that is quite thin or similar to a knife-edge. A substantially plane and level surface 5 surrounds the Vinner Aone of the counter-bores and faces towards the disc which is screw-threaded at 10 and has its 4threads meshing with those of the part 5.A This disc 9 has an imperfbrate center, and has a series of inclined ports or apertures 11,I the inclination of each of which is approximately degress to the plane surfaces of this disc and that (of the part 5) shown at 5a. All of these apertures 11 are inclined toward one another along a circular line that passes through them. Each of them is inclined to a'plane that passes therethrough and through the center of the disk. When the nozzle is in its normal upright position shown in Fig. 1. the ports are directly under the plane surface 5 and in such relation to the latter that the water from them strikes the plane surface 5EL after passing through the clear Space or centrifuval chamber 12. The centrifugal force of the water (because of the position and inclination of the ports, as described) causes the water to follow the annular wall and the Ysurface 5 until it is forced to concentra-te and pass through the inwardly and outwardly flared opening 7 in a whirl that tends to create an air inlet at the center of the opening 7. The centrifugal effect in the chamber 12 tends to create a vacuum at the center of the chamber 12, so the air (that enters through the center to fill this vacuum) commingles with the water in the chamber 12 and at the outlet thereof, thus very finely dividing` the Water into a mist that is so light that lit remains in the atmosphere a considerable time and is warmed and oxygemzed before descending onto the grass or other vegetation being sprayed; the result being very similar to that of a mild, warm rain.

This nozzle is attachable to any form of sprayer-stand provided with suitable screwthreads as at 13. on the part 14 which is the tubulaiupright of yan ordinary forln-` of sprayer-stand or bodyi. The upper end of this part 14 abuts against the disc 9 and holds it in place.

The capacity of the outlet 7 is greater than the combined capacities of the ports 11., 'and this feature helps to form the air-inlet at the center of the outlet 7. i

It is not intended to limit this invention to the exact construction and arrangement here shown, but changes may be made Within the scope of the inventive idea, as implied and claimed. i t' What I claim as my invention is:

The mist-forming andspraying devices' which includes an internally threaded part, an externally threaded disc, and an externally threaded water supply pipe or tube; the

internally threaded part havmg a plane surface which is centrally or axially apertured,

this aperture being inwardly and outwardly tlared'from a definite plane; said disc being in said internally threaded part and having its threads meshing with those of the latter and thereby held spaced from the said Plane surface and providing a centrifugal cham# ber, this disc having an imperforate center l and a plurality of inclined ports in posiland having its inner end ahnttiim against tion to direct water onto the said plane said disc, the capacity of said centraaperture portion, the inclination of each port beingr being greater than the colnbined capacities 10 to a plane that passes therethrough and of said inclined ports for the purpose Speci- 5 through the center of the disc; the said snpfied..

ply plpe having its threads intermeshing In testimony whereof I ailix my si iatul'e. with those of the internally threaded part CHARLES I NE. 

